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该专利涉及一种对氨基二苯胺生产废水短程反硝化积累亚硝态氮的方法。具体方法如下:将对氨基二苯胺生产过程中产生的含甲酸废水与含硝酸根的废水混合,调节废水的碳氮比和pH,添加氮、磷营养盐,经过沉淀、气浮等处理后,通过缺氧短程反硝化反应去除废水中的高浓度有机物,并产生含亚硝态氮的出水,以利于后续的厌氧氨氧化
This patent relates to a method for accumulating nitrite nitrogen by short-range denitrification of aminodiphenylamine wastewater. The specific method is as follows: The waste water containing formic acid generated during the production of aminodiphenylamine is mixed with waste water containing nitrate to adjust the carbon to nitrogen ratio and pH of the waste water, and the nitrogen and phosphorous nutrients are added; after being treated by precipitation and flotation, Through the anaerobic short-range denitrification reaction to remove high concentrations of organic matter in wastewater and produce nitrous nitrogen-containing effluent to facilitate the subsequent anaerobic ammonium oxidation